From a square sheet a 3 cm strap was cut off. the left rectangle has a surface of 70 cm^2. how long was the initial side of the square?

Given: jk ||lm prove: _2 = 27 statement justification 1. jk ||lm 1. given 2.26 = 27 3.22 = 26 2. 3. 4. _2 = 27 4. corresponding angles theorem transitive property of equality vertical angles theorem substitution property of equality